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NFPT Ch.4
Anatomical Terms and Biomechanics
Question | Answer |
---|---|
Parallel Sagittal Plane (Parallel Sagittal) | Parallel with midline, divides the body laterally. |
Frontal Plane (Coronal) | Divides body into a front half and a back half. EX: Lateral raise, pull down, military press. |
Transverse Plane (Horizontal Plane) | Divides body superiorly and inferiorly. EX: Rotation at the waist, bench press, internal, and external rotation. |
Sagittal Plane | Along the side of the body. EX: Pulling down a shade, elbow bending forward, lunge, squat. |
Superior | Above |
Inferior | Below |
Anterior (Ventral) | To the front. |
Posterior (Dorsal) | To the back. |
Proximal | Toward the trunk. |
Distal | Away from the trunk. Furthest from. |
Medial | Towards the middle point of the body. |
Bilateral | Both sides of the body. |
Unilateral | One side of the body. |
Peripheral | Toward the extremities. |
Superficial | Toward the outer surface. |
Deep Muscles | Towards the inner body. |
Give an example of a HINGE joint. | Elbow, Knee. (concave surface moving along the convex surface. 1 degree of freedom.. Move in one plane.) |
Give an example of a FIXED joint. | Skull. |
Give an example of a BALL AND SOCKET joint. | Shoulder, hip. (The 3 degree joints. Move in 3 planes at the same time.) |
Give an example of a GLIDING joint. | Wrist, Foot. (Joints that slide past each other, 3 degrees of freedom.. 3 planes at one time.) |
The adult has 24 vertebrae. How many in the Cervical, Thoracic, and Lumbar? | Cervical-7 Thoracic-12 Lumbar-5 |
4 Bones make up the pelvic girdle. What are they? | The Sacrum, Ilium, Ischium, and Pubic bone. |
What are the 3 main parts in the shoulder structure? | Scapula, Humeral Head, and the Clavicle. |
A CONCENTRIC contraction of a muscle is.. | Causes fibers to shorten and contract. The 'positive' part of a rep. |
An ECCENTRIC contraction of a muscle is.. | Muscles contract while fibers lengthen. Considered the 'negative' part of a rep. |
An ISOTONIC contraction of a muscle is.. | Any concentric or eccentric muscular contraction that results in movement of a joint. EX: A bicep curl, leg extension. |
An ISOMETTRIC contraction of a muscle is.. | Is tension being cause but no mechanical work is being done. EX: Holding weight out in front of you. |
An ISOKINETIC contraction of a muscle is.. | Muscle contraction at a constant velocity while pushing an immovable object. |
What is an Agonist muscle? | Muscle performing a particular action. Also known as a prime mover. |
What is an Antagonist muscle? | Muscle responsible for moving a joint in its opposite direction. |
What is an example or two of antagonistic muscle groups? | -Pectorals/Lattisimus Dorsi -Anterior and Posterior Deltoids -Left and Right external Obliques -Quadriceps/Hamstrings -Biceps/Triceps |
This sensory nerve (embedded in the fibers of a tendon) shuts down muscle contraction just short of serious acute muscle injury. | Golgi Tendon. |
Stretch receptors that shut down muscle contraction just short of over-stretch muscle tissue tearing. | Muscle Spindles |
Flexion | Bending of a joint that decreases the angle. |
Extension | Straightening of a joint that increases the angle. |
Hypoextension | Less extension then usual. |
Hyperextension | Extension beyond normal limits. |
Abduction | Away from the body. |
Adduction | Toward the body. |
Pronation | Palm turning down. |
Supination | Palm turning up. |
Rotation | Around an axis. |
Circumduction | Circular movement. |
Protraction | Forward motion occurs at shoulder joint. (abduction) |
Retraction | Backward motion, occurs in the shoulder joint. (adduction) |
Dorsiflexion | (ankle) Pointing foot up towards the body. |
Plantarflexion | (ankle) Pointing foot down. |
Inversion | Turning the feet inward so the soles face each other. |
Eversion | Turning the soles outward. |